Cownose Rays (IMAGE) Florida State University Caption Researchers are debunking claims that a rise in cownose rays led to the collapse of the oyster and shellfish industries along the Atlantic coast. Credit Dean Grubbs/Florida State Coastal and Marine Laboratory Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.